Based on the definition of apparent brightness, which units are appropriate for its measurement?
A) watts
B) joules
C) watts per square meter
D) Newtons
C
You might also like to view...
Star A is identical to Star B, except that Star A is twice as far from us as Star B. Therefore,
A) both stars have the same luminosity, but the apparent brightness of Star B is twice that of Star A. B) both stars have the same apparent brightness, but the luminosity of Star B is four times that of Star A. C) both stars have the same luminosity, but the apparent brightness of Star A is four times that of Star B. D) both stars have the same luminosity, but the apparent brightness of Star B is four times that of Star A.
The heat required to change a substance from the liquid to the vapor state is referred to as the
A) heat of fusion. B) heat of vaporization. C) heat of evaporation. D) heat of condensation. E) heat of melting.
The number of atoms in the glucose molecule, C6H12O6, is
A) 48. B) 3. C) 4. D) 24. E) cannot be determined from the given information.
An automobile driver puts on the brakes and decelerates from 35.0 m/s to zero in 11.0 s. What distance does the car travel?
a. 193 m b. 97 m c. 241 m d. 290 m e. 145 m